Question

Anyone good with solving by elimination?

Answer 1

Post the question

Answer 2

2m=-4n-4
3m+5n=-3

Answer 3

start by rewriting the first equation to match the format of the second equation

2m + 4n = -4
3m + 5n = -3

start by multiplying the first equation by 3 and tell me what you get

Answer 4

6+12=-12

Answer 5

don't forget the variables, those are important

Answer 6

6m + 12n = -12

Answer 7

now multiply the second equation by (-2)

Answer 8

ok -6m+-10n=-6

Answer 9

almost, should be positive 6 at the end

Answer 10

oh yes sorry

Answer 11

so we have

6m + 12n = -12
-6m - 10n = 6

now add the two equations together

Answer 12

0m+2n=-6

Answer 13

good, so n = ?

Answer 14

-3

Answer 15

good.

so, we can take one of the equations

2m + 4n = -4

and plug in n to solve for m

2m + 4(-3) = -4

m = ?

Answer 16

-2?

Answer 17

not quite

2m - 12 = -4
2m = 8
m = ?

Answer 18

4

Answer 19

good, so m = 4 and n = -3, and that's our solution

Answer 20

You're the best , thank you